US3346661A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Start up procedure for olefin disproportionation reactions
Assignee: Phillips Petroleum Co
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Filing: 1964-06-04
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Granted: 1967-10-10
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Expires: 1984-06-04
Abstract
No abstract record available.
Inventors
- 👤 Reagan T Wilson
- 👤 Lewis G Larson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:43
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/70; B01J23/76; B01J23/84; B01J23/85; B01J23/88; C; C07; C07C; C07C6/00; C07C6/02; C07C6/04; Y; Y10; Y10S; Y10S585/00; Y10S585/909; Y10S585/911; Y10S585/949; Y10S585/951
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
IN A CATALYTIC OLEFIN DISPORPORTIONATION PROCESS WHEREIN A SOLID OLEFIN DISPROPORTIONATION CATALYST IS MAINTAINED IN A FIXED BED AND CONTACTED WITH AN OLEFIN FOR CONVERSION THEREOF AND WHEREIN THE CATALYST IS REGENERATED BY RAISING THE TEMPERATURE ABOVE REACTION TEMPERATURE AND LOWERING THE TEMPERATURE PRIOR TO REINITIATING THE REACTION, THE IMPROVEMENT WHICH COMPRISES LOWERING THE TEMPERATURE OF THE CATALYST BELOW REACTION TEMPERATURE A SUFFICIENT AMOUNT THAT THE HEAT OF ADSORPTION OF THE REACTANT STREAM INCLUDING SAID OLEFIN UPON THE SURFACE OF THE CATALYST WILL RAISE THE TEMPERATURE OF THE CATALYST TO THE DESIRED DISPROPORTIONATING TEMPERATURE.
Claim 2
Dependent Claim
94 words
IN A CATALYTIC OLEFIN DISPORPORTIONATION PROCESS WHEREIN A SOLID OLEFIN DISPROPORTIONATION CATALYST IS MAINTAINED IN A FIXED BED AND CONTACTED WITH AN OLEFIN FOR CONVERSION THEREOF AND WHEREIN THE CATALYST IS REGENERATED BY RAISING THE TEMPERATURE ABOVE REACTION TEMPERATURE AND LOWERING THE TEMPERATURE PRIOR TO REINITIATING THE REACTION, THE IMPROVEMENT WHICH COMPRISES LOWERING THE TEMPERATURE OF THE CATALYST BELOW REACTION TEMPERATURE A SUFFICIENT AMOUNT THAT THE HEAT OF ADSORPTION OF THE REACTANT STREAM INCLUDING SAID OLEFIN UPON THE SURFACE OF THE CATALYST WILL RAISE THE TEMPERATURE OF THE CATALYST TO THE DESIRED DISPROPORTIONATING TEMPERATURE.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-09 | 1971-04-10 | 1971-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-09 | 1975-04-10 | 1975-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-09 | 1979-04-10 | 1979-10-10 | $7700.00 | Window Closed / Lapsed |